1. SP series solar Pump inverter Introduction

2. Application

3. 1. Built-in MPPT solar charger 2. Supports three-phase asynchronous motor 3. Built-in full protection and self-diagnosis 4. Soft stop function prevents water hammer effect and extends system lifecycle 5. Comprehensive LEDs and display screen for real-time system status 6. Remote monitoring through RS-485

4.  Water Pump Inverter sometimes is also called “Pump Driver” or “Pump Controller”. This inverter is used to manage the motors to make the water pump operation smoothly and extend the lifetime during the service.  SP solar pump inverter would convert the PV power to drive the motor directly. There is no battery for energy storage on this inverter. The battery-less design would help to reduce the system maintenance cost and the inverter would work when sun raises and it will turn off automatically after sunset which is suitable for the remote sides.  Inbuilt the MPPT SCC to maximize the PV energy for the connected loads.  Supporting the soft start to reduce the starting surge current. Soft stop to avoid the “Water Hammer Effect” to extend the system service time.  Inbuilt the real time protections for Dry Pumping, Phase Loses, Motor Locked, Short Circuit, Water Level Detection, Anti-Lightning, Over-Heating.  LED/LCD display the real time system status and parameter setting  The RS232/RS485 remote monitoring system will be ready in the near future.

5. Off Grid Solar system -Inverter  The typical output of PV Inverter or UPS is Pure Sinewave of 380/220Vac with 50/60Hz. But the output of SP series model is High Frequency Impulse with Sinewave current waveform. The Sinewave current could make the motors running smoothly without bring the initial surge current.  SP series uses the fixed V/F ratio at V/F=380V/50Hz. We change the F to adjust the motor speed and the maximum F is less than 50Hz.

6. Input TypePV Input BrandSP modelIxxxSxx Static PerformanceGoodWorstWorse Dynamic PerformanceGood Worse MPPT PerformanceGoodWorseWorst Speed ControlGoodWorseWorst Low PV Input Working No Working Constant Voltage SettingYes No Pump NoiseNormal Big Low Frequency NoiseNormal Big LCD DisplayReal StatusSetting Only

7. Comparison – Soft Start During the Soft Start Period. SP offers smooth output current for the connected pump. Sxx brand Inverter has unstable output voltage and worst current. Ixxx brand Inverter has worst current and unstable output voltage which may set the inverter gets fault. SP model COMPETITOR’S CHART ( SXX BRAND I XX BRAND)

8. SP Sxx Brand From below waveform, SP inverter model provides the stable voltage and current output with best MPPT performance. But Sxx brand Inverter is worse and Ixxx brand Inverter is with worst performance. Comparison – Sufficient PV Input

9.  Even with variable PV input, SP model still could adjust the output to keep the system running stable. But Sxx & Ixxx brand inverter both switch to fault mode then turn off the output. SP inverter Competitor brand

10.  The available power rating of Solar pump inverters are 2.2KW/7.5KW/11KW for 3 different models.  SP solar pump inverter only supports the 3-Phase AC motor for 380/400/415/4440Vac voltages.  SP solar pump inverter could not support the 1-Phase AC motor even the rating is smaller than 1-Phase Power of the Solar pump inverter  SP solar pump inverter only could support the pump with less or equal rating, but could not support the rating of pump higher than the Inverter rating.  After the first time connecting the pump to SP model, user needs to do the initial configuration according to the spec label of the pump on Rated Voltage/Rated Current/Rated Frequency and Rated capacity. This configuration is only needed for the 1 st time after pump installation.

11. MODEL 2.2KW 7.5KW11KW Maximum DC Voltage 800 VDC MPPT Voltage Range 500 VDC ~ 600VDC Number of MPP Trackers 1 Maximum Input Current5.8 A20.5 A27 A  We recommend the total PV Vmp is around 560Vdc to get the maximum MPPT output.  Panel Types: A. 75-A: 75W, Vmp=17.46V, Imp=4.3A, Voc=21.96V B. 75-B: 75W, Vmp=13.3V, Imp=5.64A, Voc=16.94V C. 140-A: 140W, Vmp=17.9V, Imp=7.82A, Voc=22.0V D. 250-A: 250W, Vmp=30.64, Imp=8.16A, Voc=37.38V MODEL 2.2KW 7.5KW11KW PV Panel 75-A 32 in Series (2400W PV Panels) PV Panel 75-B 42 in Series (3150W PV Panels) PV Panel 140-A 32 in Series x 2 Strings (8960W PV Panels) 32 in Series x 3 Strings (13440W PV Panels) PV Panel 250-A 19 in Series x 2 Strings (9500W PV Panels) 19 in Series x 3 Strings (14250W PV Panels)

12. MODEL 2.2KW 7.5KW11KW Maximum PV Array Power3500 W12000 W17600 W Rated Output Power2200 W7500 W11000 W PV INPUT (DC) Maximum DC Voltage 800 VDC Start-up Voltage 350 VDC MPPT Voltage Range 500 VDC ~ 600VDC Number of MPP Trackers 1 OUTPUT Nominal Voltage3 x 380/400/415/440 VAC Efficiency> 97% Output Current5.1 A17 A26 A Motor TypeThree-phase asynchronous motor Frequency Precision±0.2% PROTECTION Full Protection Over-voltage, under-voltage, over-current, surge, over-temperature and short circuit protection PHYSICAL Dimension, D X W X H (mm)110 x 230 x 342 Net Weight (kgs)5.566.5 Type of Mechanical ProtectionIP20 INTERACE Communication PortRS-232/RS-485 ENVIRONMENT Humidity< 95% RH (No condensing) Operating Temperature-20°C~45°C at 100% full load, 46°C~60°C power derating